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18950096643 = 325125166131
BaseRepresentation
bin10001101001100000…
…111000011100000011
31210220122221122121020
4101221200320130003
5302302211043033
612412222200523
71240413110112
oct215140703403
953818848536
1018950096643
1180449210a5
12380a423143
131a3001734a
14cbaaa7c79
1575d9cd6b3
hex469838703

18950096643 has 8 divisors (see below), whose sum is σ = 25367461056. Its totient is φ = 12583065000.

The previous prime is 18950096617. The next prime is 18950096651. The reversal of 18950096643 is 34669005981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18950096643 - 28 = 18950096387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18950095643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12582313 + ... + 12583818.

It is an arithmetic number, because the mean of its divisors is an integer number (3170932632).

Almost surely, 218950096643 is an apocalyptic number.

18950096643 is a deficient number, since it is larger than the sum of its proper divisors (6417364413).

18950096643 is a wasteful number, since it uses less digits than its factorization.

18950096643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25166385.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 18950096643 in words is "eighteen billion, nine hundred fifty million, ninety-six thousand, six hundred forty-three".

Divisors: 1 3 251 753 25166131 75498393 6316698881 18950096643